<h1>trim</h1>
<p>
Returns a string after removing leading and trailing blanks.
</p>
<pre>
 function trim(s) {
	sub(/^[ \t\r\n]*/,"",s)
	sub(/[ \t\r\n]*$/,"",s)
	return s
 } 
</pre>
<p>
by Tim Menzies
